Add missing secure stop methods

b/18053197
b/18076411

Change-Id: I42b97f7e39d6e9e58990b41a4c4b5a7c9b8a49cf
diff --git a/include/media/drm/DrmAPI.h b/include/media/drm/DrmAPI.h
index 4633b7e..49939fd 100644
--- a/include/media/drm/DrmAPI.h
+++ b/include/media/drm/DrmAPI.h
@@ -209,7 +209,9 @@
         // confirmed. The persisted record on the client is only removed after positive
         // confirmation that the server received the message using releaseSecureStops().
         virtual status_t getSecureStops(List<Vector<uint8_t> > &secureStops) = 0;
+        virtual status_t getSecureStop(Vector<uint8_t> const &ssid, Vector<uint8_t> &secureStop) = 0;
         virtual status_t releaseSecureStops(Vector<uint8_t> const &ssRelease) = 0;
+        virtual status_t releaseAllSecureStops() = 0;
 
         // Read a property value given the device property string.  There are a few forms
         // of property access methods, depending on the data type returned.